More than 200 Kiwis have been caught out by romance scams this year, costing them $7.9 million.
That's just for the first three months of 2018 alone, according to the latest quarterly report from Netsafe, and is six times more than for the whole of last year.
Among those conned was a man in his 40s who sent $200,000 to someone he met on a dating site while a woman in her 50s lost $15,000 and was unwittingly used as a "mule" by receiving funds from another person caught up in the same scam.
Netsafe's director of technology and partnerships, Sean Lyons, said that while it was difficult to pinpoint the exact reason for the increase, it was likely because there has been an increase in scam attempts.
He said the romance scams today were a lot more sophisticated than they used to be, making them increasingly harder to spot.
"It's a lot more sophisticated. There often a lot more evolved, they [scammers] do a lot more to convince people that they are legitimate," he said.